Hideshima, Sakiyama-mura, Hiraiga Sandstone (Cretaceous of Japan)

Where: Iwate, Japan (39.7° N, 142.0° E: paleocoordinates 52.9° N, 141.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Hiraiga Sandstone Formation (Miyako Group), Late/Upper Aptian (122.5 - 113.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: perireef or subreef; lithified, calcareous sandstone

• shallow open-marine setting with abundant fossils (corals, rudists, molluscs, calcareous algae, foraminifers); small coral-rudist buildups may have existed (reef 1216)

Size class: macrofossils

Primary reference: M. Eguchi. 1951. Mesozoic hexacorals from Japan. The Science Reports of the Tohoku University, Geology 24:1-96 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91327: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.09.2009, edited by Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Scleractinia - Heterocoeniidae
Heterocoenia aff. hideshimaensis
 Scleractinia - Comoseriidae
Polyphylloseris iwateensis n. sp.
Polyphylloseris iwateensis n. sp. Eguchi 1951 stony coral
 Scleractinia - Haplaraeidae
Meandraraea sp., "Thamnasteria hideshimaensis n. sp." = Meandrophyllia meandriformis
Meandraraea sp. Etallon 1859 stony coral
"Thamnasteria hideshimaensis n. sp." = Meandrophyllia meandriformis Morycowa 1971 stony coral
 Scleractinia - Agariciidae
"Stylomaeandra pseudominima n. sp." = Morphastrea pseudominima
"Stylomaeandra pseudominima n. sp." = Morphastrea pseudominima Eguchi 1951 stony coral
 Scleractinia - Axosmiliidae
"Pleurosmilia cf. renevieri" = Axosmilia renevieri, "Pleurosmilia hideshimaensis n. sp." = Axosmilia hideshimaensis
"Pleurosmilia cf. renevieri" = Axosmilia renevieri Koby 1895 stony coral
"Pleurosmilia hideshimaensis n. sp." = Axosmilia hideshimaensis Eguchi 1951 stony coral
 Scleractinia - Microsolenidae
Kobya ragaensis
Kobya ragaensis Eguchi 1951 stony coral
subsp. nagaoi
 Scleractinia - Latomeandridae
Ovalastrea sp., "Thamnasteria hiraigaensis" = Dimorphastrea toucasi
Ovalastrea sp. d'Orbigny 1849 stony coral
"Thamnasteria hiraigaensis" = Dimorphastrea toucasi Fromentel 1886 stony coral
 Scleractinia - Cunnolitidae
"? Cyclolites japonica n. sp." = Cunnolites japonica
"? Cyclolites japonica n. sp." = Cunnolites japonica Eguchi 1951 stony coral
 Scleractinia - Montlivaltiidae
Thecosmilia hideshimaensis n. sp.
Thecosmilia hideshimaensis n. sp. Eguchi 1951 stony coral
 Scleractinia - Faviidae
Favia haipensis
Favia haipensis Eguchi 1951 stony coral
 Scleractinia - Diplocteniopsidae
Latiphyllia sp.
Latiphyllia sp. Fromentel 1861 stony coral
 Helioporacea - Helioporidae
"Heliopora japonica" = Pseudopolytremacis japonica
"Heliopora japonica" = Pseudopolytremacis japonica Eguchi 1948